NXP Semiconductors
S32K344
White Board
messages can wake up TJA1145. MCU configures TJA1145 operation modes by sending
proper SPI commands.
The device SJA1124 is a LIN controller and transceiver. MCU can use one SPI to access
this device and generate 4 channels LIN interfaces. The other 4 LINs are linked to 4
LPUART modules on MCU.
Figure 15. CAN/LIN circuit block diagram
Figure 16. CAN and LIN transceivers on White Board
8.3.3 USB to UART interface
Two USB2UART devices CP2104 are included on the board so that debug message
can be easily transmitted to PC. LPUART0 and LPUART2 of MCU are connected to the
USB2UART interfaces.
Figure 17. CAN/LIN circuit block diagramUSB to UART circuit on the White Board
8.4 General purpose inputs and outputs
UM11919 All information provided in this document is subject to legal disclaimers. © 2023 NXP B.V. All rights reserved.
User manual Rev. 1.0 — 11 April 2023
COMPANY PUBLIC 20 / 32
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